Rotary joint for drilling machine

Abstract

The utility model discloses a rotary joint for a drilling machine, which comprises a connecting block, the lower end of the connecting block is provided with a switching mechanism, the switching mechanism comprises a fixed ring fixedly connected to the lower end of the connecting block, the inner side of the fixed ring is movably connected with a rotating block, the lower end of the rotating block is fixedly connected with a linkage block, and the linkage block is movably connected with the inner side of the fixed ring. The linkage block penetrates through the interior of the fixing ring, the linkage block is movably connected with the fixing ring, the lower end of the linkage block is fixedly connected with a mounting head, a positioning hole is formed in the front end of the rotating block, one end of the fixing ring is fixedly connected with a limiting frame, and the inner side of the limiting frame is in threaded connection with a limiting rod. According to the rotary joint for the drilling machine, the limiting rod is screwed, so that the limiting rod moves towards the outside of the limiting frame, the limiting rod is separated from the positioning hole, the fixing ring can rotate around the rotating block, the purpose of conveniently adjusting a drilling rod is achieved, the operation steps of workers are reduced, and the construction efficiency of the workers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling rig technical field, especially a rotary joint for drilling rig. BACKGROUND

[0002] The drilling rig is a non-excavation drilling engineering machinery, and is widely applied to the laying of oil and gas pipelines, water supply and drainage pipelines, power, communication and the like. The rotary joint is one of important and key components of the horizontal directional drilling rig;

[0003] The traditional rotary joint for drilling rig has some defects. The joint of the drill rod can be so tightly screwed during drilling that it can need high joint loosening, rotation of the drill rod for adjustment, and various fastening components need to be operated when the joint loosens the drill rod, which leads to too many auxiliary operation steps and further leads to influence on the construction efficiency of workers and is not conducive to the engineering progress. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a rotary joint for drilling rig, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A rotary joint for drilling rig, comprising a connecting block, a rotary joint mechanism is arranged at the lower end of the connecting block, the rotary joint mechanism comprises a fixed ring fixedly connected to the lower end of the connecting block, a rotating block movably connected to the inner side of the fixed ring, a connecting block fixedly connected to the lower end of the rotating block, the connecting block penetrates the inside of the fixed ring, the connecting block is movably connected with the fixed ring, an installation head is fixedly connected to the lower end of the connecting block, a positioning hole is arranged at the front end of the rotating block, one end of the fixed ring is fixedly connected with a limiting frame, and a limiting rod is screwedly connected to the inner side of the limiting frame.

[0007] Preferably, the axis lines of the connecting block, the fixed ring, the rotating block, the connecting block and the installation head are located on the same straight line, and the number of the positioning holes is multiple groups.

[0008] Preferably, the limiting rod penetrates the inside of the fixed ring, and the limiting rod is movably connected with the fixed ring.

[0009] Preferably, the outer side of the limiting rod is movably connected with the inner side of one of the positioning holes, and the number of the limiting frame and the limiting rod is two groups.

[0010] Preferably, the upper end of the connecting block is fixedly connected with a counter joint, the upper end of the counter joint is fixedly connected with a limiting rod, the number of the limiting rod is two groups, and the axis lines of the connecting block and the counter joint are located on the same straight line.

[0011] Compared with the prior art, the drill rig rotary joint has the beneficial effects that:

[0012] By screwing the limiting rod, the limiting rod is moved out of the limiting frame, and the limiting rod is separated from the positioning hole, so that the fixing ring can rotate around the rotating block, and the drill rod can be conveniently adjusted, thereby reducing the operation steps of workers and improving the construction efficiency of workers. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is an overall structure schematic view of the drill rig rotary joint.

[0014] Fig. 2 It is an adapter mechanism structure schematic view of the drill rig rotary joint.

[0015] Fig. 3 It is a partial structure schematic view of the adapter mechanism of the drill rig rotary joint.

[0016] In the figure: 1, connecting block; 2, adapter; 3, limiting rod; 4, adapter mechanism; 41, fixing ring; 42, rotating block; 43, positioning hole; 44, connecting block; 45, mounting head; 46, limiting frame; 47, limiting rod. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0018] As Figs. 1-3 shown, a drill rig rotary joint, comprising a connecting block 1, the lower end of the connecting block 1 is provided with an adapter mechanism 4, the adapter mechanism 4 comprises a fixing ring 41 fixedly connected to the lower end of the connecting block 1, the inner side of the fixing ring 41 is movably connected with a rotating block 42, the lower end of the rotating block 42 is fixedly connected with a connecting block 44, the connecting block 44 penetrates the inside of the fixing ring 41, the connecting block 44 is movably connected with the fixing ring 41, the lower end of the connecting block 44 is fixedly connected with a mounting head 45, the front end of the rotating block 42 is provided with a positioning hole 43, one end of the fixing ring 41 is fixedly connected with a limiting frame 46, and the inner side of the limiting frame 46 is threadedly connected with a limiting rod 47.

[0019] In the embodiment, the axis of the connecting block 1, the fixing ring 41, the rotating block 42, the connecting block 44 and the mounting head 45 is located on the same straight line, the number of the positioning holes 43 is multiple groups, the limiting rod 47 penetrates the inside of the fixing ring 41, the limiting rod 47 is movably connected with the fixing ring 41, the outer side of the limiting rod 47 is movably connected with the inner side of one of the positioning holes 43, and the number of the limiting frame 46 and the limiting rod 47 is two groups.

[0020] Specifically, when the drill rod needs to be adjusted, first twist the limiting rod 47, so that the limiting rod 47 moves outward in the inner side of the limiting frame 46, and the limiting rod 47 is separated from the inner side of the positioning hole 43, and then rotate the drilling machine, so that the fixed ring 41 rotates around the rotating block 42, and the limiting rod 47 corresponds to a new set of positioning holes 43, and then reverse the limiting rod 47, so that the limiting rod 47 is inserted into the inner side of the new set of positioning holes 43, so that the limiting rod 47 limits the rotating block 42, and under the action of the two sets of limiting rods 47, the rotating block 42 is firmly limited in the fixed ring 41, and the drilling machine can stably drive the drill rod to rotate. By twisting the limiting rod 47, the limiting rod 47 moves outward from the limiting frame 46, and the limiting rod 47 is separated from the positioning hole 43, so that the fixed ring 41 rotates around the rotating block 42, and the purpose of conveniently adjusting the drill rod is achieved, thereby reducing the operation steps of workers and improving the construction efficiency of workers.

[0021] In the embodiment, the upper end of the connecting block 1 is fixedly connected with the butt joint 2, the upper end of the butt joint 2 is fixedly connected with the limiting rod 3, the number of the limiting rod 3 is two groups, and the axis lines of the connecting block 1 and the butt joint 2 are located on the same straight line.

[0022] Specifically, the drill rod is installed in the mounting head 45, and then the butt joint 2 is inserted into the drilling machine, so that the two groups of limiting rods 3 are located in the drilling machine and are clamped in the drilling machine, thereby installing the butt joint 2 in the drilling machine, and starting the drilling machine, so that the butt joint 2 drives the drill rod to rotate.

[0023] Working principle:

[0024] In use, first install the drill rod in the mounting head 45, and then insert the butt joint 2 into the drilling machine, so that the two groups of limiting rods 3 are located in the drilling machine and are clamped in the drilling machine, thereby installing the butt joint 2 in the drilling machine, and starting the drilling machine, so that the butt joint 2 drives the drill rod to rotate. When the drill rod needs to be adjusted, first twist the limiting rod 47, so that the limiting rod 47 moves outward in the inner side of the limiting frame 46, and the limiting rod 47 is separated from the inner side of the positioning hole 43, and then rotate the drilling machine, so that the fixed ring 41 rotates around the rotating block 42, and the limiting rod 47 corresponds to a new set of positioning holes 43, and then reverse the limiting rod 47, so that the limiting rod 47 is inserted into the inner side of the new set of positioning holes 43, so that the limiting rod 47 limits the rotating block 42, and under the action of the two sets of limiting rods 47, the rotating block 42 is firmly limited in the fixed ring 41, and the drilling machine can stably drive the drill rod to rotate. By twisting the limiting rod 47, the limiting rod 47 moves outward from the limiting frame 46, and the limiting rod 47 is separated from the positioning hole 43, so that the fixed ring 41 rotates around the rotating block 42, and the purpose of conveniently adjusting the drill rod is achieved, thereby reducing the operation steps of workers and improving the construction efficiency of workers.

[0025] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary joint for a drilling rig comprising a connecting block (1), characterized in that: The lower end of the connecting block (1) is provided with a switching mechanism (4), the switching mechanism (4) comprises a fixed ring (41) fixedly connected to the lower end of the connecting block (1), the inner side of the fixed ring (41) is movably connected with a rotating block (42), the lower end of the rotating block (42) is fixedly connected with a connecting block (44), the connecting block (44) penetrates the inside of the fixed ring (41), the connecting block (44) is movably connected with the fixed ring (41), the lower end of the connecting block (44) is fixedly connected with a mounting head (45), the front end of the rotating block (42) is provided with a positioning hole (43), one end of the fixed ring (41) is fixedly connected with a limiting frame (46), the inner side of the limiting frame (46) is threadedly connected with a limiting rod (47).

2. A swivel for a drilling rig according to claim 1, characterized in that: The axis of the connecting block (1), the fixed ring (41), the rotating block (42), the connecting block (44) and the mounting head (45) is located on the same straight line, and the number of the positioning holes (43) is multiple.

3. A swivel for a drilling rig according to claim 1, characterized in that: The limiting rod (47) penetrates the inside of the fixed ring (41), and the limiting rod (47) is movably connected with the fixed ring (41).

4. A swivel for a drilling rig according to claim 1, characterized in that: The outer side of the limiting rod (47) is movably connected with the inner side of one of the positioning holes (43), and the number of the limiting frame (46) and the limiting rod (47) is two.

5. A swivel for a drilling rig according to claim 1, characterized in that: The upper end of the connecting block (1) is fixedly connected with a butt joint (2), the upper end of the butt joint (2) is fixedly connected with a limiting rod (3), the number of the limiting rod (3) is two, and the axis of the connecting block (1) and the butt joint (2) is located on the same straight line.

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